<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<meta name="viewport" content="initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
		<title>旋转加载动画2</title>
		<style type="text/css">
			@-webkit-keyframes rotate {
  0% {
    -webkit-transform: rotate(0deg);
            transform: rotate(0deg);
  }
  50% {
    -webkit-transform: rotate(180deg);
            transform: rotate(180deg);
  }
  100% {
    -webkit-transform: rotate(360deg);
            transform: rotate(360deg);
  }
}
@keyframes rotate {
  0% {
    -webkit-transform: rotate(0deg);
            transform: rotate(0deg);
  }
  50% {
    -webkit-transform: rotate(180deg);
            transform: rotate(180deg);
  }
  100% {
    -webkit-transform: rotate(360deg);
            transform: rotate(360deg);
  }
}
@-webkit-keyframes rotate2 {
  0% {
    -webkit-transform: rotate(0deg);
            transform: rotate(0deg);
    border-top-color: rgba(0, 0, 0, 0.5);
  }
  50% {
    -webkit-transform: rotate(180deg);
            transform: rotate(180deg);
    border-top-color: rgba(0, 0, 255, 0.5);
  }
  100% {
    -webkit-transform: rotate(360deg);
            transform: rotate(360deg);
    border-top-color: rgba(0, 0, 0, 0.5);
  }
}
@keyframes rotate2 {
  0% {
    -webkit-transform: rotate(0deg);
            transform: rotate(0deg);
    border-top-color: rgba(0, 0, 0, 0.5);
  }
  50% {
    -webkit-transform: rotate(180deg);
            transform: rotate(180deg);
    border-top-color: rgba(0, 0, 255, 0.5);
  }
  100% {
    -webkit-transform: rotate(360deg);
            transform: rotate(360deg);
    border-top-color: rgba(0, 0, 0, 0.5);
  }
}
* {
  box-sizing: border-box;
}

body {
  background: #f9f9f9;
  padding-bottom: 100px;
}

h1, h3 {
  display: block;
  margin: 0px auto;
  text-align: center;
  font-family: 'Tahoma';
  font-weight: lighter;
  color: rgba(0, 0, 0, 0.5);
  letter-spacing: 1.5px;
}

h1 {
  margin: 50px auto;
}

.loader1, .loader2, .loader3, .loader4 {
  position: relative;
  margin: 75px auto;
  width: 150px;
  height: 150px;
  display: block;
  overflow: hidden;
}

.loader1 div, .loader2 div, .loader3 div, .loader4 div {
  height: 100%;
}

/* loader 1 */
.loader1, .loader1 div {
  border-radius: 50%;
  padding: 8px;
  border: 2px solid transparent;
  -webkit-animation: rotate linear 3.5s infinite;
          animation: rotate linear 3.5s infinite;
  border-top-color: rgba(0, 0, 0, 0.5);
  border-bottom-color: rgba(0, 0, 255, 0.5);
}

/*loader 2  */
.loader2, .loader2 div {
  border-radius: 50%;
  padding: 8px;
  border: 2px solid transparent;
  -webkit-animation: rotate linear 3.5s infinite;
          animation: rotate linear 3.5s infinite;
  border-top-color: rgba(0, 0, 255, 0.5);
  border-left-color: rgba(0, 0, 0, 0.5);
  border-right-color: rgba(0, 0, 0, 0.5);
}

/*loader 3  */
.loader3, .loader3 div {
  border-radius: 50%;
  padding: 8px;
  border: 2px solid transparent;
  -webkit-animation: rotate linear 3.5s infinite;
          animation: rotate linear 3.5s infinite;
  border-top-color: rgba(0, 0, 0, 0.5);
  border-left-color: rgba(0, 0, 255, 0.5);
  -webkit-animation-timing-function: cubic-bezier(0.55, 0.38, 0.21, 0.88);
          animation-timing-function: cubic-bezier(0.55, 0.38, 0.21, 0.88);
  -webkit-animation-duration: 3s;
          animation-duration: 3s;
}

/* loader 4 */
.loader4, .loader4 div {
  border-radius: 50%;
  padding: 8px;
  border: 2px solid transparent;
  -webkit-animation: rotate linear 3.5s infinite;
          animation: rotate linear 3.5s infinite;
  border-radius: 50%;
  padding: 4px;
  -webkit-animation: rotate2 4s infinite linear;
          animation: rotate2 4s infinite linear;
}

div:hover {
  -webkit-animation-play-state: paused;
          animation-play-state: paused;
}

		</style>
	</head>
	<body>
		<h1>CSS3 Loaders</h1>
<h3>Hover over individual borders for some fun</h3>

<div class='loader1'>
	<div>
		<div>
			<div>
				<div>
					<div>
						<div></div>
					</div>
				</div>
			</div>
		</div>
	</div>
</div>

<div class='loader2'>
	<div>
		<div>
			<div>
				<div>
					<div>
						<div>
						</div>
					</div>
				</div>
			</div>
		</div>
	</div>
</div>

<div class='loader3'>
	<div>
		<div>
			<div>
				<div>
					<div>
						<div></div>
					</div>
				</div>
			</div>
		</div>
	</div>
</div>

<div class='loader4'>
	<div>
		<div>
			<div>
				<div>
					<div>
						<div>
							<div>
								<div>
									<div>
										<div></div>
									</div>
								</div>
							</div>
						</div>
					</div>
				</div>
			</div>
		</div>
	</div>
</div>
	</body>
</html>
